1. Symantec/
  2. Security Response/
  3. Joke.WindowCloser


February 13, 2007 11:47:52 AM
Infection Length:
34,816 bytes (packed)
Risk Impact:
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP


When this program runs, it causes the cursor to move randomly, and closes all open windows. Every time a window is opened, the mouse moves randomly and the program closes the window. There are no dropped files and no registry entries created.


The cursor moves by itself and closes open windows.
Programs are detected as Joke.WindowCloser.


Has to be manually executed.

Antivirus Protection Dates

  • Initial Rapid Release version October 2, 2014 revision 022
  • Latest Rapid Release version February 1, 2015 revision 020
  • Initial Daily Certified version January 30, 2006
  • Latest Daily Certified version August 2, 2008 revision 002
  • Initial Weekly Certified release date February 1, 2006
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

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2016 Internet Security Threat Report, Volume 21
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